Source code was inconsistent on how they were referencing
include files in include/sane. In certain cases, sane/sane.h
and sane/saneopts.h was really including external copies (with
some preprocessor implementations anyways).
* TODO: Included TODO file for 1.0.4.
* sanei/sanei_ab306.c: Removed some comiler warnings.
* doc/sane.tex: Set \date to the date of the last change (not
the date of running latex (\today))
* frontend/xscanimage.c: Fixed image size overrun (>ca. 400 MB).
Removed some compiler warnings.